Question about 2006 Volkswagen Caddy 1.9
Posted by Anonymous on
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get to try the service completely Free afterwhich it costs $6 per call and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
SOURCE: vw caddy 2001 TDI
Your car goes in "limp mode"!!!
If you scan the EDC-15P engine control unit with a VAG or KTS -BOSCH diagnosis tool you will find this:
"Fault code: P1557 - Turbo Boost pressure control exceeded"
You must try follows if you are able to do this:
1. Engine stopped and ignition switch off. Check all pneumatic connections and hoses between turbocharger actuator = pressure unit for boost-pressure control, boost-pressure control solenoid valve, vacuum reservoir, EGR control solenoid valve, intake-manifold flap solenoid valve, EGR valve with throttle - part of intake manifold. Also the vacuum connection between tandem pump and brake booster. If you find something wrong replace parts. If not go to step 2.
2. Extract the hose of the turbocharger actuator = pressure unit for boost-pressure control part of turbocharger. Instead of the original hose you must place another 1 meter long hose with the same inside diameter, and then you check to inspire yourself the air from the other one extremity of this hose. The mechanical connecting rod of the turbocharger actuator must have a smooth and whole motion. If you can do that with your mouth, then you must replace the boost-pressure control solenoid valve. If you can not reach this with your mouth, then you go to step 3.
3. This is the most difficult work. The problem is that the soot particles deposits inside the turbocharger plugging the variable nozzle geometry mechanism = adjustable vanes of the turbine. If the turbocharger actuator is not able to adjust the turbine vanes the charge air pressure increase too much and ECU (engine control unit) go in "limp mode" = engine protection software. As a result the "limp mode" engine still running until you turn the engine off (ignition switch off) and back on when the "limp mode" is deactivated, but the fault ("Fault code: P1557 - Turbo Boost pressure control exceeded") still remain in ECU memory !!!
4. You must be able to extract the turbo from the engine and then to disassemble the turbocharger, clean inside adjustable vanes mechanism and refit all.
It is some work to do here, but after that you will be full satisfied! NO MORE "LIMP MODE"!!!
Posted on Jul 11, 2009
its wore beyond spec or loose, dont be too nervous about it, until you get it fixed just try to not bounce off the steering locks. the more it slips, the faster it'll fail
Posted on Aug 25, 2009
a couple of things it could be , 1 it might be leaking valve guides+seals if they are leaking the oil drips on the pistons and when started it smokes for a while but eventually clears. 2 piston rings, if the bore is scored or you have a broken piston ring this will cause it to smoke, when engine gets to presure and the oil is thin due to being warn it can seep past either the broken ring or through the score on the bore, you can get it presure checked for that one to see if its 2. 3, being a diesel if the timing is slightly out this would cause smoke and it would be getting to much fuel in the pots to burn and you get a build up of fule that does not burn correctly, but you get other problems with that one, slow acceleration, jerkiness, that sort of thing....anyway hope that helps
Posted on Feb 08, 2010
as 2nd/3rd are the most used gears chances are the syncromesh on both these gears has gone,you need to strip g/box completly/or buy a recon box.
Posted on Apr 28, 2010
Tips for a great answer:
Jul 16, 2011 | Volkswagen Rabbit Cars & Trucks
Aug 17, 2010 | 2004 Volkswagen Eurovan
Apr 28, 2010 | 2000 Volkswagen Passat 4Motion
Feb 08, 2010 | 2005 Volkswagen Microbus
Dec 27, 2009 | Volkswagen Golf Cars & Trucks
Dec 04, 2009 | 2000 Audi A4
19 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: